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參數(shù)資料
型號： MCP4251-103E/P
廠商： Microchip Technology
文件頁數(shù)： 45/59頁
文件大小： 0K
描述： IC DGTL POT 10K 2CH 14DIP
標(biāo)準(zhǔn)包裝： 30
接片： 257
電阻（歐姆）： 10k
電路數(shù)： 2
溫度系數(shù)： 標(biāo)準(zhǔn)值 150 ppm/°C
存儲器類型： 易失
接口： 4 線 SPI（芯片選擇）
電源電壓： 1.8 V ~ 5.5 V
工作溫度： -40°C ~ 125°C
安裝類型： 通孔
封裝/外殼： 14-DIP（0.300"，7.62mm）
供應(yīng)商設(shè)備封裝： 14-PDIP
包裝： 管件
產(chǎn)品目錄頁面： 676 (CN2011-ZH PDF)
其它名稱： MCP4251-103-E/P
MCP4251-103-E/P-ND
2008 Microchip Technology Inc.
DS22060B-page 5
MCP413X/415X/423X/425X
Resistance
(± 20%)
RAB
4.0
5
6.0
k
-502 devices (Note 1)
8.0
10
12.0
k
-103 devices (Note 1)
40.0
50
60.0
k
-503 devices (Note 1)
80.0
100
120.0
k
-104 devices (Note 1)
Resolution
N
257
Taps
8-bit
No Missing Codes
129
Taps
7-bit
No Missing Codes
Step Resistance
RS
—RAB /
(256)
—
8-bit
—RAB /
(128)
—
7-bit
Nominal
Resistance Match
|RAB0 - RAB1|
/ RAB
—
0.2
1.25
%
MCP42X1 devices only
|RBW0 - RBW1|
/ RBW
—0.25
1.5
%
MCP42X2 devices only,
Code = Full-Scale
Wiper Resistance
RW
—
75
160
VDD = 5.5 V, IW = 2.0 mA, code = 00h
—
75
300
VDD = 2.7 V, IW = 2.0 mA, code = 00h
Nominal
Resistance
Tempco
ΔRAB/ΔT
—
50
—
ppm/°C TA = -20°C to +70°C
—
100
—
ppm/°C TA = -40°C to +85°C
—
150
—
ppm/°C TA = -40°C to +125°C
Ratiometeric
Tempco
ΔVWB/ΔT
—
15
—
ppm/°C Code = Midscale (80h or 40h)
Resistor Terminal
Input Voltage
Range (Terminals
A, B and W)
VA,VW,VB
VSS
—VDD
V
Maximum current
through A, W or B
IW
——
2.5
mA
Note 6, Worst case current through
wiper when wiper is either Full-Scale or
Zero Scale.
Leakage current
into A, W or B
IWL
—100
—
nA
MCP4XX1 PxA = PxW = PxB = VSS
—100
—
nA
MCP4XX2 PxB = PxW = VSS
AC/DC CHARACTERISTICS (CONTINUED)
DC Characteristics
Standard Operating Conditions (unless otherwise specified)
Operating Temperature
–40°C
≤ TA ≤ +125°C (extended)
All parameters apply across the specified operating ranges unless noted.
VDD = +2.7V to 5.5V, 5 k, 10 k, 50 k, 100 k devices.
Typical specifications represent values for VDD = 5.5V, TA = +25°C.
Parameters
Sym
Min
Typ
Max
Units
Conditions
Note 1: Resistance is defined as the resistance between terminal A to terminal B.
2: INL and DNL are measured at VW with VA = VDD and VB = VSS.
3: MCP4XX1 only.
4: MCP4XX2 only, includes VWZSE and VWFSE.
5: Resistor terminals A, W and B’s polarity with respect to each other is not restricted.
6: This specification by design.
7: Non-linearity is affected by wiper resistance (RW), which changes significantly over voltage and
temperature.
8: The MCP4XX1 is externally connected to match the configurations of the MCP41X2 and MCP42X2, and
then tested.
9: POR/BOR is not rate dependent.
10: Supply current is independent of current through the resistor network.
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